Commit Graph

19532 Commits

Author SHA1 Message Date
Laine Stump
eadd757cce qemu: log error when domain has an unsupported IDE controller
We have previously effectively ignored all <controller type='ide'>
elements in a domain definition.

On the i440fx-based machinetypes there is an IDE controller that is
included in the chipset and can't be removed (which is the ide
controller with index='0'>), so it makes sense to ignore that one
controller. However, if an i440fx domain definition has a 2nd
controller, nothing catches this error (unless you also have a disk
attached to it, in which case qemu will complain that you're trying to
use the ide controller named "ide1", which doesn't exist), and if any
other type of domain has even a single controller defined, it will be
incorrectly ignored.

Ignoring a bogus controller definition isn't such a big problem, as
long as an error is logged when any disk is attached to that
non-existent controller. But in the case of q35-based machinetypes,
the hardcoded id ("alias" in libvirt terms) of its builtin SATA
controller is "ide", which happens to be the same id as the builtin
IDE controller on i440fx machinetypes. So libvirt creates a
commandline believing that it is connecting the disk to the builtin
(but actually nonexistent) IDE controller, qemu thinks that libvirt
wanted that disk connected to the builtin SATA controller, and
everybody is happy.

Until you try to connect a 2nd disk to the IDE controller. Then qemu
will complain that you're trying to set unit=1 on a controller that
requires unit=0 (SATA controllers are organized differently than IDE
controllers).

After this patch, if a domain has an IDE controller defined for a
machinetype that has no IDE controllers, libvirt will log an error
about the controller itself as it is building the qemu commandline
(rather than a (possible) error from qemu about disks attached to that
controller). This is done by adding IDE to the list of controller
types that are handled in the loop that creates controller command
strings in qemuBuildCommandline() (previously it would *always* skip
IDE controllers). Then qemuBuildControllerDevStr() is modified to log
an appropriate error in the case of IDE controllers.

In the future, if we add support for extra IDE controllers (piix3-ide
and/or piix4-ide) we can just add it into the IDE case in
qemuBuildControllerDevStr(). For now, nobody seems anxious to add
extra support for an aging and very slow controller, when there are so
many better options available.

Resolves:

https://bugzilla.redhat.com/show_bug.cgi?id=1176071 (Fedora)
2015-05-15 15:40:43 -04:00
Laine Stump
b8f345b486 qemu: clean up qemuBuildCommandline loop that builds controller args
Reorganize the loop that builds controller args to remove unnecessary
duplicated code and superfluous else clauses. No functional change.
2015-05-15 15:38:00 -04:00
Laine Stump
548ba43028 qemu: remove test for allowing ide controller in s390, rename usb tests
Back in 2013, commit 877bc089 added in some tests that made sure no
error was generated on a domain definition that had an automatically
added usb controller if that domain didn't have a PCI bus to attach
the usb controller to. This was done because, at that time, libvirt
was automatically adding a usb controller to *any* domain definition
that didn't have one.  Along with permitting the controller, two
s390-specific tests were added to ensure this behavior was maintained
- one with <controller type='usb' model='none'/> and another (called
"s390-piix-controllers") that had both usb and ide controllers, but
nothing attached to them.

Then in February of this year, commit 09ab9dcc eliminated the annoying
auto-adding of a usb device for s390 and s390x machines, stating:

 "Since s390 does not support usb the default creation of a usb
  controller for a domain should not occur."

Although, as verified here, the s390 doesn't support usb, and usb
controllers aren't currently added to s390 domain definitions
automatically, there are likely still some domain definitions in the
wild that have a usb controller (which was added *by libvirt*, not by
the user), so we will keep the tests verifying that behavior for
now. But this patch changes the names of the tests to reflect that
they don't actually contain a valid s390 config; this way future
developers won't propagate the incorrect idea that an s390 virtual
machine can have a USB (or IDE) bus.

In the case of the IDE controller, though, libvirt has never
automatically added an IDE controller unless a user added an IDE disk
(which itself would have caused an error), and we specifically *do*
want to begin generating an error when someone tries to add an IDE
controller to a domain that can't support one. For that reason, while
renaming the sz390-piix-controllers patch, this patch removes the
<controller type='ide'...> from it (otherwise the upcoming patch would
break make check)
2015-05-15 15:37:51 -04:00
Laine Stump
0260506c65 qemu: use controller alias when constructing device/controller args
This makes sure that that the commandlines generated for devices and
controller devices are all using the alias that has been set in the
controller's object as the id of the controller, rather than
hardcoding a printf (or worse, encoding exceptions to the standard
${controller}${index} into the logic)

Since this "fixes" the controller name used for the sata controller,
the commandline arg for the sata controller in the sata test case had
to be adjusted to be "sata0" instead of "ahci0". All other tests
remain unchanged, verifying that the patch causes no other functional
change.

Because the function that finds a controller alias based on a device
def requires a pointer to the full domainDef in order to get the list
of controllers, the arglist of a few functions had to have this added.
2015-05-15 15:36:28 -04:00
Laine Stump
75cd7d9b05 qemu: fix exceptions in qemuAssignDeviceControllerAlias
There are a few extra exceptions that weren't being accounted for when
creating the alias for a controller. This resulted in 1) incorrect
status XML, and 2) exceptions/printfs of what *should* have been
directly available in the controller alias when constructing device
commandline arguments:

1) The primary (and only) IDE controller on a 440FX machinetype is
hardcoded to be "ide" in qemu.

2) The primary SATA controller on a 440FX machinetype is also
hardcoded to be "ide" in qemu.

3) On machinetypes that don't support multiple PCI buses, the PCI bus
is hardcoded in qemu to have the name "pci".

4) The first usb master controller is "usb", all others are the normal
"usb%d". (note that usb controllers that are not a "master" will have
the same index, and thus alias, as the master).

We needed to pass in the full domainDef and qemuCaps in order to
properly make the decisions about these exceptions.
2015-05-15 15:36:21 -04:00
Laine Stump
a3dfaf1272 conf: utility to return alias of a controller based on type/index
Because there are multiple potential reasons for an error, this
function logs any errors before returning NULL (since the caller won't
have the information needed to determine which was the reason for
failure).
2015-05-15 15:36:06 -04:00
Jiri Denemark
a692277873 qemu: Don't give up on first error in qemuMigrationCancelDriverMirror
When cancelling drive mirror, always try to do that for all disks even
if it fails for some of them. Report the first error we saw.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:05:31 +02:00
Jiri Denemark
5139924b8d qemu: Keep track of what disks are being migrated
Instead of redoing the same filtering over and over everytime we need to
walk through all disks which are being migrated.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:05:31 +02:00
Jiri Denemark
46a7a49535 Move QEMU-only fields from virDomainDiskDef into privateData
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:05:31 +02:00
Jiri Denemark
078717e151 Rename virDomainHasBlockjob as qemuDomainHasBlockjob
And move it to qemu_domain.[ch] because this API is QEMU-only.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:05:26 +02:00
Jiri Denemark
890fa6a055 Add privateData to virDomainDiskDef
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:04:26 +02:00
Ján Tomko
3511c12244 reject out of range memory in SetMemory APIs
The APIs take the memory value in KiB and we store it in KiB
internally, but we cannot parse the whole ULONG_MAX range
on 64-bit systems, because virDomainParseScaledValue
needs to fit the value in bytes in an unsigned long long.

https://bugzilla.redhat.com/show_bug.cgi?id=1176739
2015-05-14 17:17:40 +02:00
Martin Kletzander
07df9e1f74 Some alignment fixes in lxc_controller and jsontest
Again, a clean-up for which we don't have proper syntax-check.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-05-14 15:03:33 +02:00
Martin Kletzander
2cda7e1b89 gendispatch: Don't generate long lines
We don't allow it in normal code, why would it need to be in the
generated one.  IT also splits the line in perl code so it's readable.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-05-14 15:03:33 +02:00
Martin Kletzander
d42858f086 virnetserver: Remove unnecessary double space
Since we don't have syntax-check for this, it has to be checked
manually.  Let's hope this is the only place it happened.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-05-14 15:03:33 +02:00
Martin Kletzander
161b52662f rpc: Don't mix max_clients and max_workers in PostExecRestart
This only affected the servers that re-exec themselves, which is only
virtlockd and it didn't do any mess, so this is mostly a clenaup.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-05-14 15:03:33 +02:00
John Ferlan
361801362f qemu: Clear autofil fill flag when pinning iothread
https://bugzilla.redhat.com/show_bug.cgi?id=1218577

Treat pinning an IOThread via API as if someone added an IOThread to
ensure the iothreadid doesn't cause the guest to disappear
2015-05-14 08:36:34 -04:00
John Ferlan
375c185ca8 conf: Expose iothreadids when delete non sequential iothreadids
Since 'autofill'd iothreadid entries are not written during XML format
processing, it is possible that if an iothreadid in the middle of an
autofilled list would then change it's id on a subsequent restart.

Thus during the iothreadid deletion, if we determine the delete is not
the "last" thread, then clear the autofill bit for all iothreadid's
following the one being deleted (either the first or one in the middle).
This way, iothreadid's will be printed/saved.
2015-05-14 08:36:34 -04:00
Luyao Huang
60107346a4 virsh: Report an error when cpulist parsing fails
When parsing a cpulist, the virBitmapParse is used. On an invalid
bitmap an error is reported, but the error gets cleared
immediately by subsequent public APIs call, e.g. virDomainFree().
Moreover, we don't check whether bitmap fits into maximal CPU ID
on the host. Therefore the following examples failed without any
error:

 # virsh vcpupin test3 1 aaa

 # virsh vcpupin test3 1 1000

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-05-14 14:16:07 +02:00
Nikolay Shirokovskiy
2f1f28885a parallels: remove connection wide wait timeout
We have a lot of passing arguments code just to pass connection
object cause it holds jobTimeout. Taking into account that
right now this value is defined at compile time let's just
get rid of it and make arguments list more clear in many
places.

In case we later need some runtime configurable timeout
value we can provide this value through arguments
function already operate such as a parallels domain
object etc as this timeouts are operation( and thus
object) specific in practice.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@parallels.com>
2015-05-13 18:41:55 +03:00
zhang bo
7eb5b4bf6f qemuMigrationPrepareAny: Drop useless variable @now
As of eeb008dbfc the variable is not used anymore. Drop it.

Signed-off-by: Wang Yufei <james.wangyufei@huawei.com>
Signed-off-by: Zhang Bo <oscar.zhangbo@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-05-13 16:50:20 +02:00
Andrea Bolognani
10525df616 maint: Ignore Vim swap files
This removes some noise when you're working on the repository
and also have a bunch of source files open in Vim in another
terminal.
2015-05-13 08:39:14 -06:00
Martin Kletzander
564dd53791 Fix build --without-network
In order not to bring in any link dependencies, bridge driver doesn't
use the usual stubs as other conditionally-built code does.  However,
having the function as a macro imposes a problem with possibly unused
variables if just defined as "0".  This was worked around by using
(dom=dom, iface=iface, 0) which should act like a 0 if used in a
condition.  However, gcc still bugs about that, so I came up with
another way how to fix that.

Using static inline functions in the header won't collide with anything,
it fixes the bug and does one thing that the macro didn't do.  It checks
whenther passed variables are pointers of compatible type.  It has only
one downside, and that is that we need to either a) define it with
ATTRIBUTE_UNUSED, which needs an exception in cfg.mk or b) do something
like ignore_value(variable); in the function body.  I went with the
first variant.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-05-13 15:04:41 +02:00
Ján Tomko
083c33b324 Assign virtio-serial addresses after coldplugging a device
Otherwise we might allow coldplugging a device
that uses an address that is already occupied, creating
an unstartable domain.

https://bugzilla.redhat.com/show_bug.cgi?id=1220195
2015-05-13 12:20:31 +02:00
Pavel Hrdina
afaffeb873 qemu: vnc: error out for invalid port number
In the XML we have the vnc port number, but QEMU takes on command line
a vnc screen number, it's port-5900.  We should fail with error message
that only ports in range [5900,65535] are valid.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1164966

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-05-13 10:24:36 +02:00
Michal Privoznik
abac12b585 virSysinfoParseProcessor: Drop useless check for NULL
VIR_STRDUP plays nicely with NULLs. Theres no need to guard its
call with check for non-NULL.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-05-13 10:17:45 +02:00
Jim Fehlig
fa33c0b8af libxl: support VNC passwd
While implementing support for SPICE, I noticed VNC passwd was
never copied to libxl_device_vfb's vnc.passwd field.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-12 15:32:04 -06:00
John Ferlan
4b2b53f674 conf: Remove source host name check for iSCSI
https://bugzilla.redhat.com/show_bug.cgi?id=1171984
https://bugzilla.redhat.com/show_bug.cgi?id=1188463

Remove the check for the source host name for iSCSI source XML processing
declaring duplicate sources when the source device path and if present the
initiator of a proposed storage pool matches an existing storage pool.

The backend iSCSI storage driver uses 'iscsiadm --mode session' to query
available iscsid target sessions. The output displayed is the IP address
and the IQN (target path) of known targets. The displayed IP address
is a resolved address based on the session --login. Additionally, iscsid
keeps track of the various ways to define the host name (IPv4 Address,
IPv6 Address, /etc/hosts, etc.) for that IQN (see output of an 'iscsiadm
--mode node'). If an incoming IQN matches and the host name provided by
libvirt is resolved to the existing IQN, then iscsid will "reuse" the
session. Although libvirt could do the same name resolution, if there
is a difference, iscsid could still declare two seemingly different sources
to be the same and not create a new session which means libvirt now has
two storage pools looking at the same source. Thus to avoid any strange
host name resolution issues, just rely on iscsid for that and do not
allow multiple pools on the same host to use the same device path (IQN).
2015-05-12 16:16:48 -04:00
John Ferlan
6dd9297c88 conf: Adjust duplicate source host port check
Only perform the port number check if the incoming definition actually
provides it. Since the port number is optional we could erroneously pass
a duplicate source host check since some storage pool backends which fill
in the default port number (e.g., iSCSI and sheepdog) for the started pool.
2015-05-12 16:16:48 -04:00
Luyao Huang
5f6fe84d57 qemu: fix double free when RNG cold-plug fails
https://bugzilla.redhat.com/show_bug.cgi?id=1220809

When cold-plugging an RNG device but something fails in
qemuDomainAssignAddresses, we will double free the RNG device.
Once a device is plugged into the domain, we should set the
device pointer to NULL to fix this issue.

...
5  0x00007fb7d180ac8a in virFree at util/viralloc.c:582
6  0x00007fb7d1895cdd in virDomainRNGDefFree at conf/domain_conf.c:19786
7  0x00007fb7d1895d99 in virDomainDeviceDefFree at conf/domain_conf.c:2022
8  0x00007fb7b92b8baf in qemuDomainAttachDeviceFlags at qemu/qemu_driver.c:8785
9  0x00007fb7d190c5d7 in virDomainAttachDeviceFlags at libvirt-domain.c:8488
10 0x00007fb7d23af9d2 in remoteDispatchDomainAttachDeviceFlags at remote_dispatch.h:2842
...

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-05-12 17:09:14 +02:00
Peter Krempa
ecc997fd43 daemon: Suppress logging of VIR_ERR_NO_DOMAIN_METADATA
Similarly to other error codes that notify the user that the object does
not exist lower the priority of VIR_ERR_NO_DOMAIN_METADATA to
VIR_LOG_DEBUG when writing the log entry.
2015-05-12 14:18:39 +02:00
Pavel Hrdina
78e27b5e0a conf_capabilities: fix wrong indentation
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-05-12 12:12:58 +02:00
Pavel Hrdina
d091518b35 XML: escape strings where we should do it
There is a lot of places, were it's pretty easy for user to enter some
characters that we need to escape to create a valid XML description.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1197580

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-05-12 12:05:07 +02:00
Richard W.M. Jones
ed8155eafb Document that virNodeGetInfo can return mhz == 0.
On the s/390x architecture, libvirt may already return 0 in the
node_info->mhz field (see src/nodeinfo.c:linuxNodeInfoCPUPopulate).

We may also want to return this on aarch64 in future, because
calculating the proper value requires SMBIOS, which is not available
on non-server-class systems (specifically on systems which don't
adhere to the SBSA standard).

Therefore this change documents the existing behaviour and provides a
valid path for aarch64.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Bug-URL: https://bugzilla.redhat.com/1206353
2015-05-12 10:08:43 +01:00
Michal Privoznik
64e070e8fe libvirt-guests: Initialize SYNC_TIME
https://bugzilla.redhat.com/show_bug.cgi?id=1191227

Since 0fa15b19 we have this variable SYNC_TIME which allows users to
synchronize time on domain resume. However, despite what documentation
says, it's by default on because it's never initialized. Fix this by
setting it to zero at the beginning of the libvirt-guests script.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-05-12 08:53:14 +02:00
Laine Stump
e27c5c8fcb qemu: eliminate duplicated code in qemuBuildDriveDevStr()
The code to add device type to the commandline was identical for lsi
and other models of SCSI controllers, but was duplicated (with the
exception of a minor ordering difference of the if-else clauses) for
the two cases. This patch replaces those two with a single instance of
the code just before the if().
2015-05-11 16:56:26 -04:00
Laine Stump
da558e72c4 qemu: use qemuDomainMachineIsI440FX() in appropriate place
This patch makes qemuValideDevicePCISlotsChipsets() more consistent in
appearance by replacing several clauses of an if with the equivalent
call to qemuDomainMachineIsI440FX. The if was checking exactly the
same items, just in a slightly different order.
2015-05-11 16:49:47 -04:00
Roman Bogorodskiy
97e70a5935 maint: extend PIE support check
GCC installed from FreeBSD ports doesn't support building PIE executables
and fails with:

/usr/local/bin/ld: /usr/lib/crt1.o: relocation R_X86_64_32 against
`_DYNAMIC' can not be used when making a shared object; recompile with
-fPIC
/usr/lib/crt1.o: error adding symbols: Bad value
collect2: error: ld returned 1 exit status

However, the configure check for '-fPIC -DPIC' doesn't catch that. In
order to catch this case, add '-pie' to CFLAGS in m4/virt-compile-pie.m4
so it could detect lack of PIE support on configure time and don't fail
the build.
2015-05-11 20:08:47 +03:00
Roman Bogorodskiy
846cc14c4d bhyve: fix bhyvexml2argvtest build with gcc
gcc5 reports an error like this:

bhyvexml2argvtest.c: In function 'testCompareXMLToArgvFiles':
bhyvexml2argvtest.c:24:18: error: variable 'vm' set but not used
[-Werror=unused-but-set-variable]
     virDomainObj vm;
                  ^
cc1: all warnings being treated as errors

Fix by dropping this variable.
2015-05-11 20:08:47 +03:00
Luyao Huang
c49b9032a2 conf: Report error for unknown shmem ioeventfd value
https://bugzilla.redhat.com/show_bug.cgi?id=1220265

Passing the return value to an enum directly is not safe.  Fix this by
comparing the true integer result of virTristateSwitchTypeFromString().

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-05-11 16:05:07 +02:00
Ján Tomko
076dd37995 Ignore bridge template names with multiple printf conversions
For some reason, we allow a bridge name with %d in it, which we replace
with an unsigned integer to form a bridge name that does not yet exist
on the host.

Do not blindly pass it to virAsprintf if it's not the only conversion,
to prevent crashing on input like:

<network>
  <name>test</name>
  <forward mode='none'/>
  <bridge name='virbr%d%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s'/>
</network>

Ignore any template strings that do not have exactly one %d conversion,
like we do in various drivers before calling virNetDevTapCreateInBridgePort.
2015-05-11 14:14:33 +02:00
Peter Krempa
2f37362e44 qemu: Fix balloon size handling with memory hot(un)plug
Since libvirt doesn't call to update the new balloon size in qemu add
code that will handle tweaking of the size of the current balloon
statistic until qemu reports the new size using the event.
2015-05-11 08:50:36 +02:00
Peter Krempa
de03b1ddde conf: Fix up balloon size after removing a memory device from def
To avoid having the ballooned memory size larger than the actual
physical memory size, truncate the ballooned size if it overflows.
2015-05-11 08:50:36 +02:00
Peter Krempa
fccc2c3313 conf: Always truncate balloon size to maximum memory size
Specifying a balloon size more than the memory size of a guest isn't
something that should be rejected when parsing the XML. Truncate the
size to the maximum memory size.
2015-05-11 08:50:36 +02:00
Peter Krempa
85d8ede9eb qemu: Convert qemuConnectGetAllDomainStats to use new helpers
Use the new domain list collection helpers to avoid going through
virDomainPtrs.

This additionally implements filter capability when called through the
api that accepts domain list filters.
2015-05-11 08:47:42 +02:00
Peter Krempa
83726a14d2 conf: Add helper to convert list of virDomains to a list of virDomainObjs
Add virDomainObjListConvert that will take a list of virDomains, apply
filters and return a list of virDomainObjs.
2015-05-11 08:45:51 +02:00
Peter Krempa
cbe7bbf722 conf: Refactor domain list collection critical section
Until now the virDomainListAllDomains API would lock the domain list and
then every single domain object to access and filter it. This would
potentially allow a unresponsive VM to block the whole daemon if a
*listAllDomains call would get stuck.

To avoid this problem this patch collects a list of referenced domain
objects first from the list and then unlocks it right away. The
expensive operation requiring locking of the domain object is executed
after the list lock is dropped. While a single blocked domain will still
lock up a listAllDomains call, the domain list won't be held locked and
thus other APIs won't be blocked.

Additionally this patch also fixes the lookup code, where we'd ignore
the vm->removing flag and thus potentially return domain objects that
would be deleted very soon so calling any API wouldn't make sense.

As other clients also could benefit from operating on a list of domain
objects rather than the public domain descriptors a new intermediate
API - virDomainObjListCollect - is introduced by this patch.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1181074
2015-05-11 08:28:54 +02:00
Peter Krempa
7906d5fbbb conf: Rename virDomainObjListFilter type to virDomainObjListACLFilter
The passed function is meant to filter domains according to ACL match.
2015-05-11 08:28:54 +02:00
Peter Krempa
684675c33b conf: Extract code to filter domain list into a separate function
Separate the code to simplify future refactors.
2015-05-11 08:28:54 +02:00
Peter Krempa
a5e89ae16e util: Make the virDomainListFree helper more universal
Extend it to a universal helper used for clearing lists of any objects.
Note that the argument type is specifically void * to allow implicit
typecasting.

Additionally add a helper that works on non-NULL terminated arrays once
we know the length.
2015-05-11 08:28:53 +02:00